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Titolo:
Shock sensitization of startle: learned or unlearned fear?
Autore:
Richardson, R;
Indirizzi:
Univ New S Wales, Sch Psychol, Sydney, NSW 2052, Australia Univ New S Wales Sydney NSW Australia 2052 l, Sydney, NSW 2052, Australia
Titolo Testata:
BEHAVIOURAL BRAIN RESEARCH
fascicolo: 1-2, volume: 110, anno: 2000,
pagine: 109 - 117
SICI:
0166-4328(20000601)110:1-2<109:SSOSLO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
POTENTIATED STARTLE; CONTEXTUAL FEAR; IMMEDIATE SHOCK; LATENT INHIBITION; STRIA TERMINALIS; CENTRAL NUCLEUS; BED NUCLEUS; RATS; REFLEX; AMYGDALA;
Keywords:
startle; contextual conditioning; shock sensitization; unlearned fear; rats;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Richardson, R Univ New S Wales, Sch Psychol, Sydney, NSW 2052, Australia Univ New S Wales Sydney NSW Australia 2052 2052, Australia
Citazione:
R. Richardson, "Shock sensitization of startle: learned or unlearned fear?", BEH BRA RES, 110(1-2), 2000, pp. 109-117

Abstract

Following shock, rats exhibit a potentiated startle response to a sudden, loud noise. It has been suggested that this shock sensitization of the startle response can be used as a model preparation for studying unlearned fear. After reviewing the theoretical and empirical bases for this claim, the results of several recent studies that show that the shock sensitization of startle effect is actually mediated by contextually conditioned fear are presented. From this, it is concluded that the shock sensitization of startleprocedure is an appropriate model preparation for studying contextual conditioning but is not an appropriate procedure for studying unlearned fear. Several other procedures that have potential as model preparations for studying unlearned fear are discussed briefly. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 22/01/20 alle ore 06:53:13